Some javadoc stuff and adjustment to the Controller hierarch..

Changed name of Controller to ControllerReviewTreeEditable and made it inherit from ControllerReviewEditable for editable duties. Internally holds a ControllerReviewNodeExpandable for tree-related duties. Adjusted Fragments and Dialogs accordingly.
Some javadoc stuff and adjustment to the Controller hierarch..

Changed name of Controller to ControllerReviewTreeEditable and made it inherit from ControllerReviewEditable for editable duties. Internally holds a ControllerReviewNodeExpandable for tree-related duties. Adjusted Fragments and Dialogs accordingly.